What is 12,325 written in scientific notation?

For which rational expression is -2 an excluded value of x

If u answer this u will get good luck for a year

Agroup of five people go out to eat and buy appetizers and main dishes they decide to split the bill so each person pays 20% of the total cost appetizers are $5 and main dishes are $10 write an expression to show how much each person pays explain it with how to solve the problem